//**************************************************************************************
// Average4.6.java     Java Foubdations
// 
// Demonstrates the use of a while loop ,a sentinel value,and a running sum.
//**************************************************************************************
import java.text.DecimalFormat;
import java.util.Scanner;

public class Average4.6
{
     //--------------------------------------------------------------------------------
     // Computes the average of a set of values entered by the user.
     // The running sum is printed as the numbers are entered.
     //--------------------------------------------------------------------------------
     public static void main(String[]args)
     {
          int sum = 0,value,count = 0;
          double average;
           
          Scanner scan = new Scanner (System.in);

          System.out.print("Enter an integer (0 to quit):");
          value = scan.nextInt();
       
          while (value! = 0)//sentinel value of 0 to terminate loop

          {
               count++;
               sum +=value ;
               System.out.println("The sum so far is" + sum.);
               
               System.out.println("Enter an integer ( 0 to quit):");
               value = scan.nextInt();
          }
          System.out.println();
 
          if (count == 0)
             System.out.println("No values were entered.");
          else
          {
               average = (double)sum/count;
               DecimalFormat fmt = new DecimalFormat("0.###");
               System.out.println ("The averge is " + fmt.format(average));
          }  
   }
}
     
          










